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Exposure Mode and Line/Frame Rate
How to Set Exposure Mode and Line/Frame Rate
You have a choice of operating the camera in one of two exposure modes. Depending on your mode of
operation, the camera's line/frame rate (synchronization) can be generated internally through the
software command
ssf
is important that the line rate used matches the web speed. Failure to match the web speed will result in
smearing.
To select how you want the camera's line/frame rate to be generated:
1. You must first set the camera's exposure mode using the sem command.
2. Next, if using mode 7, use the command ssf to set the line/frame rate.
Setting the Exposure Mode
Purpose:
Syntax:
Syntax Elements:
Notes:
Related Commands:
Example:
Table 7: Piranha HN Exposure Modes
Programmable Frame Rate Programmable Exposure Time
Mode
SYNC
3
External
7
Internal
03-032-20135-00
or set externally with an EXSYNC signal (CC1). When operating in TDI Mode, it
Sets the camera's exposure mode allowing you to control your sync and line/frame rate
generation.
sem m
m
Exposure mode to use. Factory setting is 7.
•
To obtain the current value of the exposure mode, use the command gcp or get
sem.
When setting the camera to external signal modes, EXSYNC must be supplied.
•
•
Refer to
Setting Frame Rate
TDI or Area Mode.
•
Exposure Modes are saved separately for TDI Mode and Area Mode. Refer to
Saving and Restoring Settings
ssf
sem 3
No
No
Yes
No
for more information on how to operate your camera in
for more information on how to save camera settings.
Description
Maximum exposure time with no charge reset.
Internal sync, maximum exposure time with no charge reset.
Piranha HN RoHS User Manual
Teledyne DALSA
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